Current limiting circuit breaker mechanism

Details Current limiting circuit breaker mechanism Current limiting circuit breaker mechanism

1984-01-23

1985-11-05

Goldberg, E. A.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335195, H01H 7500

Patent

active

045516979

ABSTRACT:
The invention concerns a very simple and effective current limiting circuit breaker of great versatility which is especially adaptable for motor control centers and combinations starters. That breaker can be used with various interchangeable trip units always with the same basic mechanism.
(a) for instantaneous trip type circuit breakers of various current ratings having high interrupting capacity and low I.sup.2 t value to protect control equipment at high fault currents.
(b) for high interrupting capacity thermal magnetic circuit breakers at various current ratings.
(c) for circuit breakers with solid state tripping units to protect against overloads, short circuits, single phasing, underloads, etc.

REFERENCES:
patent: 4325041 (1982-04-01), Murai

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